/*
 * io.go
 * 
 * Copyright 2013 Mykola Dvornik <mykola.dvornik@gmail.com>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 * 
 */

package io

import (
	"log"
	"os"
	"code.google.com/p/semargl4/dump"
)

var RefHeader dump.Header

func ReadDumpHeader(filename string) {
	file, err := os.Open(filename)
	defer file.Close()
	checkErr(err)
	r := dump.NewReader(file)
	r.ReadHeader()
	RefHeader = r.Header
}

func checkErr(err error) {
	if err != nil {
		log.Fatal(err)
	}
}

func CheckDataExist(names []string) {
	// check input files for existence 
	for _, arg := range names {
		_, err := os.Stat(arg)
		if err != nil {
			log.Fatal(err)
		}
	}
}
